Premium powder-coated 20oz double-wall tumbler with military-grade vacuum insulation for extreme temperature retention. Crafted from 18/8 food-grade stainless steel, resistant to rust and odors. Shatterproof design features a sweat-proof exterior and non-slip base. Precision-laser welded seam ensures 100% leakproof performance. Ergonomic flip lid with smooth-action locking mechanism for one-handed operation. Ideal for outdoor adventures, office use, gym sessions, and road trips. Customizable bulk orders available with 12 vibrant color options. Commercial-grade durability withstands dishwasher cleaning and daily drops. Wholesale pricing structure unlocks at 50+ units with volume discounts. Direct factory sourcing eliminates middleman markups for guaranteed lowest global pricing.